import collections
import importlib.util
import os
import re
from pathlib import Path


A						=			'src/transformers'


# Matches is_xxx_available()
A						=			re.compile(r'is\_([a-z_]*)_available()')
# Catches a one-line _import_struct = {xxx}
A						=			re.compile(r'^_import_structure\s+=\s+\{([^\}]+)\}')
# Catches a line with a key-values pattern: "bla": ["foo", "bar"]
A						=			re.compile(r'\s+"\S*":\s+\[([^\]]*)\]')
# Catches a line if not is_foo_available
A						=			re.compile(r'^\s*if\s+not\s+is\_[a-z_]*\_available\(\)')
# Catches a line _import_struct["bla"].append("foo")
A						=			re.compile(r'^\s*_import_structure\["\S*"\]\.append\("(\S*)"\)')
# Catches a line _import_struct["bla"].extend(["foo", "bar"]) or _import_struct["bla"] = ["foo", "bar"]
A						=			re.compile(r'^\s*_import_structure\[\S*\](?:\.extend\(|\s*=\s+)\[([^\]]*)\]')
# Catches a line with an object between quotes and a comma:     "MyModel",
A						=			re.compile('^\s+"([^"]+)",')
# Catches a line with objects between brackets only:    ["foo", "bar"],
A						=			re.compile('^\s+\[([^\]]+)\]')
# Catches a line with from foo import bar, bla, boo
A						=			re.compile(r'\s+from\s+\S*\s+import\s+([^\(\s].*)\n')
# Catches a line with try:
A						=			re.compile(r'^\s*try:')
# Catches a line with else:
A						=			re.compile(r'^\s*else:')


def 	lowerCamelCase					(	UpperCamelCase     :				Optional[Any]							)   ->    Optional[int]:
		if _re_test_backend.search(UpperCamelCase							) is None:
				return None
		_lowerCamelCase				   =  [b[0] for b in _re_backend.findall(UpperCamelCase							)]
		backends.sort()
		return "_and_".join(UpperCamelCase							)


def 	lowerCamelCase					(	UpperCamelCase     :				Optional[int]							)   ->    Optional[int]:
		with open(UpperCamelCase			,       'r'			,       encoding='utf-8'			,       newline='\n'							) as f:
				_lowerCamelCase				   =  f.readlines()

		_lowerCamelCase				   =  0
		while line_index < len(UpperCamelCase							) and not lines[line_index].startswith('_import_structure = {'							):
				line_index += 1

		# If this is a traditional init, just return.
		if line_index >= len(UpperCamelCase							):
				return None

		# First grab the objects without a specific backend in _import_structure
		_lowerCamelCase				   =  []
		while not lines[line_index].startswith('if TYPE_CHECKING'							) and find_backend(lines[line_index]							) is None:
				_lowerCamelCase				   =  lines[line_index]
				# If we have everything on a single line, let's deal with it.
				if _re_one_line_import_struct.search(UpperCamelCase							):
						_lowerCamelCase				   =  _re_one_line_import_struct.search(UpperCamelCase							).groups()[0]
						_lowerCamelCase				   =  re.findall('\[([^\]]+)\]'			,       UpperCamelCase							)
						for imp in imports:
								objects.extend([obj[1:-1] for obj in imp.split(', '							)]							)
						line_index += 1
						continue
				_lowerCamelCase				   =  _re_import_struct_key_value.search(UpperCamelCase							)
				if single_line_import_search is not None:
						_lowerCamelCase				   =  [obj[1:-1] for obj in single_line_import_search.groups()[0].split(', '							) if len(UpperCamelCase							) > 0]
						objects.extend(UpperCamelCase							)
				elif line.startswith(' ' * 8 + '"'							):
						objects.append(line[9:-3]							)
				line_index += 1

		_lowerCamelCase				   =  {'none': objects}
		# Let's continue with backend-specific objects in _import_structure
		while not lines[line_index].startswith('if TYPE_CHECKING'							):
				# If the line is an if not is_backend_available, we grab all objects associated.
				_lowerCamelCase				   =  find_backend(lines[line_index]							)
				# Check if the backend declaration is inside a try block:
				if _re_try.search(lines[line_index - 1]							) is None:
						_lowerCamelCase				   =  None

				if backend is not None:
						line_index += 1

						# Scroll until we hit the else block of try-except-else
						while _re_else.search(lines[line_index]							) is None:
								line_index += 1

						line_index += 1

						_lowerCamelCase				   =  []
						# Until we unindent, add backend objects to the list
						while len(lines[line_index]							) <= 1 or lines[line_index].startswith(' ' * 4							):
								_lowerCamelCase				   =  lines[line_index]
								if _re_import_struct_add_one.search(UpperCamelCase							) is not None:
										objects.append(_re_import_struct_add_one.search(UpperCamelCase							).groups()[0]							)
								elif _re_import_struct_add_many.search(UpperCamelCase							) is not None:
										_lowerCamelCase				   =  _re_import_struct_add_many.search(UpperCamelCase							).groups()[0].split(', '							)
										_lowerCamelCase				   =  [obj[1:-1] for obj in imports if len(UpperCamelCase							) > 0]
										objects.extend(UpperCamelCase							)
								elif _re_between_brackets.search(UpperCamelCase							) is not None:
										_lowerCamelCase				   =  _re_between_brackets.search(UpperCamelCase							).groups()[0].split(', '							)
										_lowerCamelCase				   =  [obj[1:-1] for obj in imports if len(UpperCamelCase							) > 0]
										objects.extend(UpperCamelCase							)
								elif _re_quote_object.search(UpperCamelCase							) is not None:
										objects.append(_re_quote_object.search(UpperCamelCase							).groups()[0]							)
								elif line.startswith(' ' * 8 + '"'							):
										objects.append(line[9:-3]							)
								elif line.startswith(' ' * 12 + '"'							):
										objects.append(line[13:-3]							)
								line_index += 1

						_lowerCamelCase				   =  objects
				else:
						line_index += 1

    # At this stage we are in the TYPE_CHECKING part, first grab the objects without a specific backend
		_lowerCamelCase				   =  []
		while (
		    line_index < len(UpperCamelCase							)
		    and find_backend(lines[line_index]							) is None
		    and not lines[line_index].startswith('else'							)
		):
				_lowerCamelCase				   =  lines[line_index]
				_lowerCamelCase				   =  _re_import.search(UpperCamelCase							)
				if single_line_import_search is not None:
						objects.extend(single_line_import_search.groups()[0].split(', '							)							)
				elif line.startswith(' ' * 8							):
						objects.append(line[8:-2]							)
				line_index += 1

		_lowerCamelCase				   =  {'none': objects}
		# Let's continue with backend-specific objects
		while line_index < len(UpperCamelCase							):
				# If the line is an if is_backend_available, we grab all objects associated.
				_lowerCamelCase				   =  find_backend(lines[line_index]							)
				# Check if the backend declaration is inside a try block:
				if _re_try.search(lines[line_index - 1]							) is None:
						_lowerCamelCase				   =  None

				if backend is not None:
						line_index += 1

						# Scroll until we hit the else block of try-except-else
						while _re_else.search(lines[line_index]							) is None:
								line_index += 1

						line_index += 1

						_lowerCamelCase				   =  []
						# Until we unindent, add backend objects to the list
						while len(lines[line_index]							) <= 1 or lines[line_index].startswith(' ' * 8							):
								_lowerCamelCase				   =  lines[line_index]
								_lowerCamelCase				   =  _re_import.search(UpperCamelCase							)
								if single_line_import_search is not None:
										objects.extend(single_line_import_search.groups()[0].split(', '							)							)
								elif line.startswith(' ' * 12							):
										objects.append(line[12:-2]							)
								line_index += 1

						_lowerCamelCase				   =  objects
				else:
						line_index += 1

		return import_dict_objects, type_hint_objects


def 	lowerCamelCase					(	UpperCamelCase     :				Tuple			,       UpperCamelCase     :				Optional[int]							)   ->    Any:

		def find_duplicates(UpperCamelCase     :				List[Any]							):
				return [k for k, v in collections.Counter(UpperCamelCase							).items() if v > 1]

		if list(import_dict_objects.keys()							) != list(type_hint_objects.keys()							):
				return ["Both sides of the init do not have the same backends!"]

		_lowerCamelCase				   =  []
		for key in import_dict_objects.keys():
				_lowerCamelCase				   =  find_duplicates(import_dict_objects[key]							)
				if duplicate_imports:
						errors.append(F"""Duplicate _import_structure definitions for: {duplicate_imports}"""							)
				_lowerCamelCase				   =  find_duplicates(type_hint_objects[key]							)
				if duplicate_type_hints:
						errors.append(F"""Duplicate TYPE_CHECKING objects for: {duplicate_type_hints}"""							)

				if sorted(set(import_dict_objects[key]							)							) != sorted(set(type_hint_objects[key]							)							):
						_lowerCamelCase				   =  'base imports' if key == 'none' else F"""{key} backend"""
						errors.append(F"""Differences for {name}:"""							)
						for a in type_hint_objects[key]:
								if a not in import_dict_objects[key]:
										errors.append(F"""  {a} in TYPE_HINT but not in _import_structure."""							)
						for a in import_dict_objects[key]:
								if a not in type_hint_objects[key]:
										errors.append(F"""  {a} in _import_structure but not in TYPE_HINT."""							)
		return errors


def 	lowerCamelCase					(	)   ->    List[Any]:
		_lowerCamelCase				   =  []
		for root, _, files in os.walk(UpperCamelCase							):
				if "__init__.py" in files:
						_lowerCamelCase				   =  os.path.join(UpperCamelCase			,       '__init__.py'							)
						_lowerCamelCase				   =  parse_init(UpperCamelCase							)
						if objects is not None:
								_lowerCamelCase				   =  analyze_results(*UpperCamelCase							)
								if len(UpperCamelCase							) > 0:
										_lowerCamelCase				   =  F"""Problem in {fname}, both halves do not define the same objects.\n{errors[0]}"""
										failures.append('\n'.join(UpperCamelCase							)							)
		if len(UpperCamelCase							) > 0:
				raise ValueError('\n\n'.join(UpperCamelCase							)							)


def 	lowerCamelCase					(	)   ->    Optional[Any]:
		_lowerCamelCase				   =  []
		for path, directories, files in os.walk(UpperCamelCase							):
				for folder in directories:
						# Ignore private modules
						if folder.startswith('_'							):
								directories.remove(UpperCamelCase							)
								continue
						# Ignore leftovers from branches (empty folders apart from pycache)
						if len(list((Path(UpperCamelCase							) / folder).glob('*.py'							)							)							) == 0:
								continue
						_lowerCamelCase				   =  str((Path(UpperCamelCase							) / folder).relative_to(UpperCamelCase							)							)
						_lowerCamelCase				   =  short_path.replace(os.path.sep			,       '.'							)
						submodules.append(UpperCamelCase							)
				for fname in files:
						if fname == "__init__.py":
								continue
						_lowerCamelCase				   =  str((Path(UpperCamelCase							) / fname).relative_to(UpperCamelCase							)							)
						_lowerCamelCase				   =  short_path.replace('.py'			,       ''							).replace(os.path.sep			,       '.'							)
						if len(submodule.split('.'							)							) == 1:
								submodules.append(UpperCamelCase							)
		return submodules


A						=			[
    'convert_pytorch_checkpoint_to_tf2',
    'modeling_flax_pytorch_utils',
]


def 	lowerCamelCase					(	)   ->    List[Any]:
		# This is to make sure the transformers module imported is the one in the repo.
		_lowerCamelCase				   =  importlib.util.spec_from_file_location(
		    'transformers'			,       os.path.join(UpperCamelCase			,       '__init__.py'							)			,       submodule_search_locations=[PATH_TO_TRANSFORMERS]			,       )
		_lowerCamelCase				   =  spec.loader.load_module()

		_lowerCamelCase				   =  [
		    module
		    for module in get_transformers_submodules()
		    if module not in IGNORE_SUBMODULES and module not in transformers._import_structure.keys()
		]
		if len(UpperCamelCase							) > 0:
				_lowerCamelCase				   =  '\n'.join(F"""- {module}""" for module in module_not_registered							)
				raise ValueError(
				    'The following submodules are not properly registered in the main init of Transformers:\n'
				    F"""{list_of_modules}\n"""
				    'Make sure they appear somewhere in the keys of `_import_structure` with an empty list as value.'							)


if __name__ == "__main__":
				check_all_inits()
				check_submodules()
import functools
from typing import Any


def 	lowerCamelCase					(	UpperCamelCase     :				str			,       UpperCamelCase     :				list[str]							)   ->    bool:

		# Validation
		if not isinstance(UpperCamelCase			,       UpperCamelCase							) or len(UpperCamelCase							) == 0:
				raise ValueError('the string should be not empty string'							)

		if not isinstance(UpperCamelCase			,       UpperCamelCase							) or not all(
		    isinstance(UpperCamelCase			,       UpperCamelCase							) and len(UpperCamelCase							) > 0 for item in words							):
				raise ValueError('the words should be a list of non-empty strings'							)

		# Build trie
		_lowerCamelCase				   =  {}
		_lowerCamelCase				   =  'WORD_KEEPER'

		for word in words:
				_lowerCamelCase				   =  trie
				for c in word:
						if c not in trie_node:
								_lowerCamelCase				   =  {}

						_lowerCamelCase				   =  trie_node[c]

				_lowerCamelCase				   =  True

		_lowerCamelCase				   =  len(UpperCamelCase							)

		# Dynamic programming method
		@functools.cache
		def is_breakable(UpperCamelCase     :				int							) -> bool:
				if index == len_string:
						return True

				_lowerCamelCase				   =  trie
				for i in range(UpperCamelCase			,       UpperCamelCase							):
						_lowerCamelCase				   =  trie_node.get(string[i]			,       UpperCamelCase							)

						if trie_node is None:
								return False

						if trie_node.get(UpperCamelCase			,       UpperCamelCase							) and is_breakable(i + 1							):
								return True

				return False

		return is_breakable(0							)


if __name__ == "__main__":
				import doctest

				doctest.testmod()